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otus

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jan.varho.org
Finland
Member for 7 years, 4 months

Reputation

30,910

30.9k
28.4k
25.9k

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97/100 score

39/20 answers

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875 posts edited

196 helpful flags

4,680 votes cast

Answers (630)

Votes Activity Newest

52	Is secp256r1 more secure than secp256k1?
41	Are checksums essentially non-secure versions of cryptographic hashes?
33	Can Shannon's entropy be used to determine if a file is encrypted?
31	Can I remove newlines in a public key?
27	Is HMAC needed for a SHA-3 based MAC?

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Reputation (30,910)

+10	How is "post-quantum security" proven/shown?
+10	Does NTRU provide Perfect Forward Secrecy?
+10	How many qubits are required to break RSA 2048 or 4096 with a universal quantum computer?
+10	Is secp256r1 more secure than secp256k1?

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Questions (18)

Votes Activity Newest

45	What is a "freestart collision"?
15	Does a partial preimage attack imply a preimage attack?
9	Why is the whole initial state used in the final addition of Salsa20 and ChaCha?
8	How many degrees of freedom up my sleeve?
7	Where is CFB-MAC defined?

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Tags (225)

576 hash × 140	199 random-number-generator × 44
357 encryption × 96	195 reference-request × 33
228 aes × 76	189 cryptanalysis × 54
226 elliptic-curves × 39	188 public-key × 42
208 passwords × 51	175 hmac × 47

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Bookmarks (92)

Votes Activity Newest Views Added

393	Should we MAC-then-encrypt or encrypt-then-MAC?
123	How big an RSA key is considered secure today?
109	How should I calculate the entropy of a password?
99	What is the new attack on SHA-1 "SHAttered" and how does it work?
56	What makes a hash function good for password hashing?

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Accounts (12)

	Cryptography	30,910 rep	5 gold badges63 silver badges148 bronze badges
	Stack Overflow	5,147 rep	30 silver badges48 bronze badges
	Code Review	878 rep	7 silver badges17 bronze badges
	Ask Ubuntu	853 rep	1 gold badge8 silver badges23 bronze badges
	Information Security	647 rep	6 silver badges13 bronze badges

Badges (79)

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Popular Question × 6	Booster
Good Answer × 6	Enlightened × 18
Yearling × 7	Constituent × 4
Nice Answer × 42	Caucus × 4
Necromancer × 8	Announcer × 11

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Votes cast (4,680)

all time			by type
4,218	up		2,561	question
462	down		2,119	answer

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